please remove the dllexport of static libs

[z16166]

hi,

Currently uWebSockets and its dependency "uSockets" define a macro "WIN32_EXPORT" in header file "libusockets.h", as the following.
So all uSockets api functions and a uWebSockets class named "struct WIN32_EXPORT WebSocketProtocol" will appear in exe/dll export tables even if we use their static libs.
Please remove "__declspec(dllexport)" for static lib build configuration. Thanks.

#ifdef _WIN32
#ifndef NOMINMAX
#define NOMINMAX
#endif
#include <winsock2.h>
#define LIBUS_SOCKET_DESCRIPTOR SOCKET
#define WIN32_EXPORT __declspec(dllexport)
#else
#define LIBUS_SOCKET_DESCRIPTOR int
#define WIN32_EXPORT
#endif

[z16166]

Maybe we can use MSVC macro "_DLL" to detect dll build vs static lib build.

#ifdef _WIN32

#ifdef _DLL
#define WIN32_EXPORT __declspec(dllexport)
#else
#define WIN32_EXPORT
#endif

#endif

[traversaro]

As the default build system only build static libraries (#99), the easiest fix for this issue is just to define WIN32_EXPORT to an empty string also on Windows. However, at that point WIN32_EXPORT would be empty on all platforms, so probably it could make sense to just remove it altogether. I would be happy to provide a PR to remove it if that is the decision of the mantainers of the library.

[uNetworkingAB]

if you want to add that _DLL macro check under _WIN32 that's fine with me, that sounds very reasonable make PR plaes

[uNetworkingAB]

Now that I think of it, who is really building DLL of uSockets? That's really crappy for performance and should never be done. uSockets should always be a static lib

[traversaro]

Now that I think of it, who is really building DLL of uSockets? That's really crappy for performance and should never be done. uSockets should always be a static lib

Indeed, that is what I mentioned in #184 (comment) . Do you prefer to simply define WIN32_EXPORT to empty also on Windows or just get rid of WIN32_EXPORT altogether?

[traversaro]

Now that I think of it, who is really building DLL of uSockets? That's really crappy for performance and should never be done. uSockets should always be a static lib

Indeed, that is what I mentioned in #184 (comment) . Do you prefer to simply define WIN32_EXPORT to empty also on Windows or just get rid of WIN32_EXPORT altogether?

This was handled in b950efd, thanks!